Octave coupler



(No Model.) I A. H. HAMMOND.

OOTAVE COUPLER.

No. 364,410. I Patented June 7, 1887.

UNITED STATES PATENT ()FFICEQ ANDREW H. HAMMONDfOF WORCESTER, MASSACHUSETTS.

O'CTAVE-COUP'LER.

SPECIFICATION forming part of Letters Patent No. 364,410, dated June 7, 1887.

Application filed April 28, 1887. Serial No. 236,406, (No model.)

to ing a part of this specification, will enable others skilled in the art to which my invention belongs to make and use the same.

My invention relates to octave-coupler attachments for organs and other similar musical instruments, and more especiallyto the means for securing and holding in place the couplerlevers upon the coupler-board.

. The object of my invention is to obtain a cheap, simple. and easy method of securing the coupler-levers upon the coupler-board, and in such a manner that said levers can be accurately spaced off upon their supporting-board and held from endwise motion thereon, and can also be placed very close together, so as to 2 5 make the octave-coupler attachment more compact, and can be readily and quickly secured to the coupler-board.

I attain the object of my invention by means of an improved device, consisting of a wooden 0 post provided with a hole or slot therein, to

be used in connection with octave-coupler levers and coupler-boards for supporting the same, of the ordinary construction, for securing said coupler-levers in position,'in the manner to be hereinafter fully described.

Referring to the drawings, Figure 1 represents a plan view of aportion of one end of an octave-coupler embodying my invention, the end coupler-lever beingleftoff to show the holes 0 in the coupler-board. Fig. 2 is a cross-section,

on line as m, Fig. 1, looking in the direction of the arrow, same figure, showing the manner of combining the holding-post with the couplerboard and coupler-lever; and Fig. 3 is a side 5 elevation of the holding post provided with a hole or slot therein for holding the couplerlever, as will be hereinafter described.

In the accompanying drawings I have only illustrated a sufficient part of an octave-coup- 5o ler to enable those skilled in the art to under stand the nature of my invention applied thereto.

The part marked A is the coupler-board, upon which the coupler-levers B, of the ordinary construction, are supported and roll or turn. v

The coupler-board A is provided with a series of holes, a, along each edge thereof, which are equidistant from each other and of equal depth in said board, and into which the posts 0, for securing the coupler-levers B, are set, as will be hereinafter described.

Strips or rings of felt or equivalent material, b, are used in connection with the board A and posts 0, and serve to prevent any rattling of the levers B on said board, and also to press up said levers and hold them in place in the posts 0, as will be hereinafter described;

Each coupler-lever B is secured in place upon the coupler-board A, and allowed to roll or turn freely thereon, by means of two wooden posts, 0, which are set as close as practicable to the bent arms of saidlever, upon the inside thereof, to prevent any endwise motion of the lever on the coupler-board.

Each post G has a hole bored through it, a little larger than the diameter of the couplerlever, and an opening made into the hole enough below the center thereof to leave an overhanging lip, thus forming a hole or slot 0, in said holding-post, into which the body oi central part of the coupler-lever may be inserted and retained in place, and at the same time allowed to revolve or turn freely therein.

The wooden holding-posts C are all made of uniform size, the diameter of the same corresponding to the diameter'of the holes a in the coupler-board A, into which said posts are inserted in the process of securing the coupler levers to said board.

I prefer to construct the posts 0 in such a manner and so set them in the coupler-board A that the coupler-levers B will rest and bear upon the felt 1) instead of upon the lower part of the hole or slot 0 in said posts 0, for the felt or other elastic material on the side of or around the posts 0 serves to press up said levers to a bearing in the upper part of the hole or slot 0 in the posts 0, and the overhanging lip of said hole or slot serves to retain the lever in-place in said hole or slot.

It is not necessary to line the holes or slots 0 1n the posts 0 with felt, or to encircle the coupler-levers therewith, to prevent rattling,

IOO

as is the case in the use of metallic fastening devices.

I prefer to combine my holding-posts O with the coupler-board A and coupler-levers B in the following manner: The coupler'board A is first provided with the two series of holes a, as above described. The attendant then takes a coupler-lever, B, and attaches two of the posts 0 thereto by inserting the body or central part of the lever into the holes or slots 0 in said posts. He then takes hold of each post 0, now supporting the coupler-levers B, previously inserted in the holes or slotsin said posts, as above stated, and inserts the lower ends thereof into the holes a in the coupler-board A and presses or drives them down until they reach the bottom of said holes, which are all made of uniform depth and of such a depth that the coupler-levers secured in the posts 0 will rest upon the felt and be retained within said posts 0, as before stated, requiring no further adjustment. In order to secure the posts 0 more firmly in the holes a, glue or other adhesive material may be made use of.

The advantages of employing wooden holding posts of the description above set forth For securing the coupler-levers upon the couplerboard in the manner above described over the devices heretofore used will be clearly apparent to tliose skilled in the art, and do not require to be set forthherein.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an octave-coupler, a device for securin g the coupler-1evers upon the coupler-board, consisting of a post provided with a hole extending through the body thereof for the purpose of holding and supporting the couplerlever, substantially as set forth.

2. The combination, with a couplerboard provided with holes therein and coupler-levers, of posts provided with holes or slots therein for the reception 01' the coupler-levers, and adapted to be inserted in the holes in the coupler-board, substantially as set forth.

8. In octave couplers, wooden posts pro vided with holes or slots therein for the reception of the coupler-levers, as a means for secnring the coupler-levers upon the COllplGF-bOElld, substantially as described.

ANDRE\V H. II AM MON D.

Witnesses:

J our: 0. Drawer, M. RALPH DRYDEN. 

